1// RUN: %clangxx_msan -O0 %s -o %t && not %run %t >%t.out 2>&1
2// RUN: FileCheck %s < %t.out
3// RUN: %clangxx_msan -O1 %s -o %t && not %run %t >%t.out 2>&1
4// RUN: FileCheck %s < %t.out
5// RUN: %clangxx_msan -O2 %s -o %t && not %run %t >%t.out 2>&1
6// RUN: FileCheck %s < %t.out
7// RUN: %clangxx_msan -O3 %s -o %t && not %run %t >%t.out 2>&1
8// RUN: FileCheck %s < %t.out
9
10// RUN: %clangxx_msan -fsanitize-memory-track-origins -O0 %s -o %t && not %run %t >%t.out 2>&1
11// RUN: FileCheck %s < %t.out && FileCheck %s --check-prefixes=CHECK-ORIGINS,ORIGINS-FAT < %t.out
12// RUN: %clangxx_msan -fsanitize-memory-track-origins -O1 %s -o %t && not %run %t >%t.out 2>&1
13// RUN: FileCheck %s < %t.out && FileCheck %s --check-prefixes=CHECK-ORIGINS,ORIGINS-FAT < %t.out
14// RUN: %clangxx_msan -fsanitize-memory-track-origins -O2 %s -o %t && not %run %t >%t.out 2>&1
15// RUN: FileCheck %s < %t.out && FileCheck %s --check-prefixes=CHECK-ORIGINS,ORIGINS-FAT < %t.out
16// RUN: %clangxx_msan -fsanitize-memory-track-origins -O3 %s -o %t && not %run %t >%t.out 2>&1
17// RUN: FileCheck %s < %t.out && FileCheck %s --check-prefixes=CHECK-ORIGINS,ORIGINS-FAT < %t.out
18
19// RUN: %clangxx_msan -fsanitize-memory-track-origins -mllvm -msan-print-stack-names=0 -O0 %s -o %t && not %run %t >%t.out 2>&1
20// RUN: FileCheck %s < %t.out && FileCheck %s --check-prefixes=CHECK-ORIGINS,ORIGINS-LEAN < %t.out
21
22#include <stdlib.h>
23int main(int argc, char **argv) {
24 int x;
25 int *volatile p = &x;
26 return *p;
27 // CHECK: WARNING: MemorySanitizer: use-of-uninitialized-value
28 // CHECK: {{#0 0x.* in main .*stack-origin.cpp:}}[[@LINE-2]]
29
30 // ORIGINS-FAT: Uninitialized value was created by an allocation of 'x' in the stack frame
31 // ORIGINS-LEAN: Uninitialized value was created in the stack frame
32 // CHECK-ORIGINS: {{#0 0x.* in main .*stack-origin.cpp:}}[[@LINE-8]]
33
34 // CHECK: SUMMARY: MemorySanitizer: use-of-uninitialized-value {{.*stack-origin.cpp:.* main}}
35}
36

source code of compiler-rt/test/msan/stack-origin.cpp